Improvement in tool-holder for grindstones



PHILIP LEONARD OF SHARON, IENNSILTLVANIA.'`

Letters Patent N. 100,047, dated February 22, 1870.

IMPROVEMENT IN TOOL-HOLDER FORAGRINDSTONES.

The Schedule referred to in these Letters Patent and making par-t Of theSame.

MPF-

and traversing them along the face. of the. stones, and

adjusting them for grinding on diti'erent bevels.

lt consists ot' a slotted bed-plate arranged for attach- 4ment to thewood frames ot' the stone byscrcws or bolts, so as to be adjustedtowards or from the face ot' the stone, and provided with uprights,wherein a vertically oscillating plate is jonrualed at the edge next thestone, which-plate serves t'or the support and laterally traversing bedot' a tool or scraper holder, which is capableof sliding to or from thestone, and is provided with a screw for operating it. A

Figure 1 is a sectional elevation of my improved apparatus, the sectionheilig taken on the line x x of lig. 2, and i Figure 2 is a plan viewofthe same.

Similar letters of reference indicate corresponding parts.

A is the bed-plate. l

t is provided with a slot, B, in each end, and the said ends are raisedabove-tl1e intermediate part so that the latter will set down below thefaces of the timbers whereon the ends rest. It is attached to the beamsby bolts passing througll the slots which adlnit the plate to beadjusted to or from thestone. C represents the posts rising up from thebed-plate at the corners ot' the. side next the stone, for thesnpportfot' the set-screws D, or journals ot' the plate E plvotedbetween them to oseillatel vertically.

This plate is provided with a long slot, F, in which the guide (1 ofthebed Vll, t'or the tool-holding slide I, works back and forth, to permitthe tool or scraper to -be traversed across the t'ace ot' the stone.

This holder l slides up and down on'the bed H, and is worked by a screw,K. i

L is the scraper', permanent-lj attached to the front end ot' the bed H.

vThe outer edge of the plate E may be raised or lowered, as required forthe bevel ot' the edge of the toot to be ground, and a notched wedge, M,maybe placed under it to hohl it when required.

Having thus described my invention, I claim as new, and Patent- -Thecombination of the plates A E, bed I-I, toolslide I, screw K,'scrapcr L,posts C, and set-screws D, or journals, all constructed and arranged'substatitially as specitied.

. PHILIP LEONARD.

Witnesses;

Asnn APPLEGATE, WILLIAM G. Tensen.

desire to secure by Letters

